When it comes to foods, America is not just the fattest country on earth but probably the most schizophrenic as well--home to th

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问题    When it comes to foods, America is not just the fattest country on earth but probably the most schizophrenic as well--home to the Big Mac and Weight Watchers, the super model and the couch potato.
   The love-hate relationship with food was examined in the documentary "Fat" which aired on November 3, and if there is any comfort for the more than 90 million overweight Americans it’s that the rest of the world is also getting fatter.
   "There is an enormous pressure on people to be thin and to be physically fit but at the same time there is a tremendous pressure and inducement to eat, "Or Kelly Brownell, professor of psychology at Yale University and a participant in the programme, said in an interview.  "You will see a Baskin Robbins next to Weight Watchers. You’ll see a Family Circle magazine with a delicious chocolate cake on the cover beside a diet article, "said Brownell.  "At the same time as we have record levels of obesity, we have record levels of eating disorders too," he said.
   The desire to eat fatty food came from a primitive survival instinct to store enough energy in good times to ensure survival when food was scare. But in a modern urban society, where fast food chains appear on almost every block, the instinct to eat far has begun to work against us.
   The documentary claims that nowhere is the exposure to junk food more prevalent than in the United States, where the problem has been compounded by the increasingly sedentary modern lifestyle. It also says that members of Arizona’s Pima Indian tribe are the fattest people in the fattest country on earth. Until recently the tribe lived a simple life, but in 1984 when the tribe won a gaming stream. Today the tribe is plagued by obesity, high blood pressure and heart disease. Just 800 kms south in Mexico, another branch of the Pima tribe continues to live a traditional life and eats a traditional diets. These Pima have none of the problems of their American counterparts, who are on average 27kgs heavier.
   Part of the problem, according to Brownetl, is the intense advertising of junk food in the United States. The average American child sees thousands of TV commercials each year, most of which advertise fast food, candy and sodas.
   The food environment has become so "toxic" according to the documentary, that some US schools even offers fast food such as McDonald’s and Burger King in school cafeterias.  
Compared with Arizona’s Pima Indian, Pima diet in Mexico remains healthy because ______.

选项 A、they are far away from America
B、they are thin
C、they lives comfortably than those Arizona’s Pima
D、they don’t follow Americans to eat junk food

答案D

解析 第五段对Arizona’s Pima Indian tribe 和Pima in Mexico进行比较。指出Pima in Mexico 保持健康的原因在于其保持其传统饮食,而没有沿袭美国人的生活方式去吃垃圾食品。
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